2005-2010 on Syfy probably would have been the ECW relaunch, but apparently Smackdown was on Syfy from 2010-2015. I'm not sure what other wrestling might have been on it from 2008 onward, because I wasn't paying as much attn.
I would need more information, like what he looked like. That wrestling period I watched from maybe 2004-2008, so I'm not sure what happened after. I had watched from the beginning of the ECW relaunch until when I gave up because they weren't pushing CM Punk and instead were focused on Lashley who looked like a million bucks, but he only had maybe 5-bucks worth of talent at the time and his promos couldn't draw a dime (which people eventually got around by giving him a mouthpiece, with MVP being probably the best at it).
He definitely wasn't black. Either white or hispanic. Might have been named Eddy or something like that. Think he had curly brown hair. Also If I remember right he lost fairly early in his "undefeated" streak. ---